package lianxi9;

import java.util.function.Function;

public class Letter {

	
	public static String addHeader(String text){
		return "From Raoul,Mario and Alan" +text;
	}
	
	public static String addFooter(String text){
		return  text+"Kind regards";
	}
	
	public static String checkSpelling(String text){
		return  text.replaceAll("C\\+\\+", "**Censored");
	}
	
	public static void main(String[] args) {
		Function<String, String> addHeader =Letter::addHeader;
		Function<String, String> transformationPipeline
			=addHeader.andThen(Letter::checkSpelling)
					  .andThen(Letter::addFooter);
		System.out.println(transformationPipeline.apply("C++ stay away from me"));
	}
}
